First, the weapons should be intended for use only in retaliation after a nuclear attack. Second, the possession of the weapons must be a temporary expedient.

首先，这些武器应当只在遭受核袭击后反击时才使用。其次，这些武器的拥有必须是一种临时的应急手段。

《柯林斯英汉双解大词典》

Exelon Corp. will explore building a new nuclear reactor downstate.

美国爱克斯龙电力公司会在州的最南部研发建造一个新的核反应堆。

《柯林斯英汉双解大词典》

A nuclear holocaust seemed a very real possibility in the '50s.

在50年代，核灾难似乎是件很有可能发生的事。

《柯林斯英汉双解大词典》

The two sides have been negotiating a new treaty to reduce nuclear arms, to replace a treaty that ends in December.

VOA: special.2009.09.19

If we think about that, that's a sigma bond, right, they're coming together along the nuclear axis.

如果我们考虑它的话，它是sigma键，对吧，它们沿着核轴方向靠近。

麻省理工公开课 - 化学原理课程节选

It's Huxley that said woe to the slaying of a beautiful theory by an ugly fact, nuclear collapse.

赫胥黎说过,一个美丽的理论,被丑陋的事实所抹杀，核坍塌，真是科学的悲剧。

麻省理工公开课 - 固态化学导论课程节选

And we've agreed on the goal, and that is that Iran should not have a nuclear weapon, the capacity to make a nuclear weapon, or the knowledge as to how to make a nuclear weapon.

NPR: United States Pushes U.N. for Action Against Iran

You see you only have to declare within the Safeguards Agreement a nuclear facility, ok, this is an important thing, you have to underline it, that you only declare a nuclear facility a hundred and eighty days before you introduce the nuclear material into that.

BBC

"On the margin, a new nuclear plant is not a cheap addition, but adding to the capacity of our existing nuclear fleet is quite economical--about half the price of a new nuclear plant, " Rowe says.

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